CN103120601B - There is the medical device control handle independent from fixing drag wire actuator - Google Patents
There is the medical device control handle independent from fixing drag wire actuator Download PDFInfo
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- CN103120601B CN103120601B CN201210465475.9A CN201210465475A CN103120601B CN 103120601 B CN103120601 B CN 103120601B CN 201210465475 A CN201210465475 A CN 201210465475A CN 103120601 B CN103120601 B CN 103120601B
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- drag wire
- joystick
- axle
- actuating assembly
- actuator
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0133—Tip steering devices
- A61M25/0136—Handles therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
- A61B2017/003—Steerable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
- A61B2017/003—Steerable
- A61B2017/00318—Steering mechanisms
- A61B2017/00323—Cables or rods
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
- A61B2017/003—Steerable
- A61B2017/00318—Steering mechanisms
- A61B2017/00323—Cables or rods
- A61B2017/00327—Cables or rods with actuating members moving in opposite directions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00345—Vascular system
- A61B2018/00404—Blood vessels other than those in or around the heart
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
- A61B2018/00839—Bioelectrical parameters, e.g. ECG, EEG
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/0091—Handpieces of the surgical instrument or device
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1405—Electrodes having a specific shape
- A61B2018/1435—Spiral
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0133—Tip steering devices
- A61M25/0147—Tip steering devices with movable mechanical means, e.g. pull wires
Abstract
The invention discloses medical device control handle, described medical device control handle has the first actuation member and starts at least one drag wire (if not a pair drag wire of the two-way flexure for conduit) in a kind of manipulation of medical treatment device, including unilateral deflection, and having the second actuation member and start other drag wire in the another kind of manipulation of medical treatment device, wherein the first actuation member and the second actuation member have common axis of rotation line and connect the most rotatably.In one embodiment, the first actuating assembly has the first actuator, can enclose the arm rotated about the axis and the first axle.First flexure actuator and arm are connected rotatably by rotating shaft, and this arm has at least one pulley, and this at least one pulley engages with drag wire.Second line actuating assembly has the second actuator and the second axle, and the second axle has Bobbin portion.Each actuating assembly is respectively provided with the element causing friction, and this element provides the friction torque between the parts of each assembly so that actuator is self-retaining.
Description
Technical field
The present invention relates to the joystick for medical treatment device, in particular relate to the joystick with multiple mechanism,
Described mechanism is used for controlling a plurality of drag wire.
Background technology
Electrode catheter has been commonly used to medical practice for many years.They are used to stimulate and the electrical activity in mapping heart, with
And it is used for melting the position of abnormal electrical activity.Atrial fibrillation is a kind of common perpetual arrhythmia and is the main of apoplexy
Reason.This disease is long-term existence because of the reentrant wavelet propagated in abnormal atrial tissue substrate.Develop various side
Method interrupts wavelet, the atriotomy mediated including surgical operation or conduit.Before treating this disease, it is necessary to first determine son
The position of ripple.Have pointed out various for making this technology determined, including use, there is mapping assembly
(mappingassembly) conduit, this mapping assembly can measure pulmonary vein, the activity of coronary sinus or around described structure
The activity of other tubular structure of inner periphery.A kind of this kind of mapping assembly has tubular structure, and this tubular structure includes substantially horizontal
To in catheter main body and be positioned at catheter main body far-end and there is the substantially a ring-shaped main region of excircle, and it is positioned at this main region
The substantially straight remote area of far-end.This tubular structure includes the non-conductive covering at least covering the main region of mapping assembly.
The supporting member with shape memory it is provided with in the main region of at least this mapping assembly.This mapping assembly substantially a ring-shaped
Main region is with multiple electrodes pair, and every pair all includes two ring electrodes.
In use, the insertion of this electrode catheter is had been arranged at cardinal vein or the guide sheath pipe of aorta such as femoral artery
In, and lead into ventricle.In ventricle, this conduit is made to extend beyond the far-end of guide sheath pipe to expose mapping assembly.
The action graded by the distal portion including bending this conduit handles this conduit, so that mapping assembly is positioned in ventricle
Tubular area.Control the exact position of conduit and the configuration of the ability of orientation and mapping assembly is crucial, and the biggest
The serviceability of conduit is determined in degree.
Easily the conduit of manipulation is well-known.Such as, United States Patent (USP) Re 34,502 describe and have leading of joystick
Pipe, this joystick includes housing, and this housing has piston chamber at its far-end.Piston is installed in piston chamber and can indulge
Move to ground.The near-end of elongated catheter main body is connected to piston.Drag wire (puller wire) be connected to housing and
Extend through piston, enter the end sections at catheter main body far-end through catheter main body.The far-end of drag wire is anchored
In the end sections of conduit.With this arrangement, piston can cause catheter tip sections relative to the lengthwise movement of housing
Flexure.
Design described in United States Patent (USP) RE 34,502 is typically limited to the conduit with single drag wire.If it is desire to
Two-way flexure, then need the drag wire more than.Additionally, if it is desire to more control such as to make mapping assembly receive
Contracting, then need the drag wire added.Additionally, it is desirable to be self-retaining for starting the mechanism of additional drag wire so that this machine
Structure can keep the contraction of mapping assembly, and without being controlled continuously by user.It is therefore desirable to be able to make the 3rd drag wire move
Joystick, described 3rd drag wire can use in hand-free mode.
Summary of the invention
The present invention relates to medical device control handle.Along with medical treatment device especially electrophysiologicalcatheter catheter becomes to become increasingly complex
And having more parts to be actuated, joystick should provide the independence to a plurality of drag wire to control.The control hands of the present invention
Handle utilizes the first actuation member to start at least one drag wire (if not being used for in a kind of manipulation of medical treatment device
A pair drag wire of the two-way flexure of conduit), including unilateral deflection, and utilize the second actuation member at medical treatment device
Another kind of handle in start other drag wire, wherein the first actuation member and the second actuation member have common axis of rotation
Line and connect the most rotatably.
In one embodiment, the joystick for medical treatment device has a drag wire for handling a knot
Structure, and there is another drag wire for handling another structure, this joystick has the first actuating assembly and second
Actuating assembly.First actuating assembly has the first actuator, can enclose the arm rotated about the axis and the first axle.First flexure activates
Device and arm are connected rotatably by rotating shaft, and this arm has at least one pulley, and this at least one pulley engages with drag wire.
Second line actuating assembly has the second actuator and the second axle, and the second axle has Bobbin portion.User rotates the first actuator
Arm is rotated when mobile pulley, and to pull the first drag wire, the first drag wire handles the first structure of medical treatment device, and makes
User rotates the second actuator and can be wound in spool member by the second drag wire, and spool member handles the second knot of medical treatment device
Structure.Although the first actuating assembly and the second actuating assembly are axially aligned with and have common axis of rotation line, this rotation axis letter
Change the design of joystick and save the space in joystick, but the axle of each actuating assembly is the most only
Vertical so that each actuating assembly operates independently of one another and makes the startup of drag wire of an assembly independent of another group
The startup of the drag wire of part.
In more detailed embodiment, each actuating assembly is respectively provided with the element causing friction, and this element provides each group
Friction torque between the parts of part so that actuator is self-retaining.This structure makes joystick operate holding-freely, its
Middle user actively need not fix actuator to keep the manipulation of the corresponding construction to medical treatment device.
Accompanying drawing explanation
Read in conjunction with the accompanying following detailed Description Of The Invention, be better understood with these and other features of the invention and advantage.
Should be appreciated that selected structure and features does not illustrate in some accompanying drawing, in order to preferably present remaining structure and spy
Levy.
Fig. 1 is the plan view from above of an embodiment of the conduit of the present invention.
Fig. 2 A is the side sectional view of the embodiment at the junction surface of catheter main body and the interstitial segment intercepted along the first diameter.
Fig. 2 B is the side of the embodiment at the junction surface of Fig. 2 A along the Second bobbin diameter intercepting being approximately perpendicular to the first diameter
Sectional view.
Fig. 3 is the cross-sectional end view of the interstitial segment of Fig. 2 A and 2B.
Fig. 4 is the side view of the embodiment of distal component.
Fig. 5 is the cross-sectional end view of the substantially straight proximal part of the distal component of Fig. 4 that 5-5 along the line intercepts.
Fig. 6 is the partial view of the joystick of Fig. 1, it illustrates knob and rotating disk.
Fig. 7 is the plan view from above of the embodiment of joystick case half.
Fig. 8 A to 8C is in the joystick case half of Fig. 7 of neutral configuration, right flexure configuration and left flexure configuration
Schematic diagram.
Fig. 9 is the side view of the embodiment of pulley arm.
Figure 10 is the cross-sectional end view of the joystick of Fig. 1.
Figure 11 is the decomposition diagram of the embodiment of the embodiment of steering assembly and independent drag wire actuating assembly.
Figure 12 is the side partial cross-sectional of the alternate embodiment of joystick case half.
Figure 13 is the perspective view of the embodiment of the axle of actuating assembly.
Figure 14 A is the perspective view of the side of the embodiment of the bearing of actuating assembly.
Figure 14 B is the perspective view of the opposite side of the bearing of Figure 14 A.
Figure 15 A is the perspective view of the side of the embodiment of balladeur train.
Figure 15 B is the perspective view of the opposite side of the balladeur train of Figure 15 A.
Figure 16 is the side view of the embodiment of pulley.
Detailed description of the invention
The present invention relates to the joystick 10 being used in combination with medical treatment device, it is stretchable that this joystick has at least two
Component such as drag wire or similar device, for the motion of at least two independence of parts or the behaviour that start medical treatment device
Vertical.Joystick can be used in combination with multiple medical treatment device, such as, be configured for mapping and/or ablation tissue includes heart
Electro physiology (EP) conduit 10, embodiment is as shown in Figure 1.Advantageously, the first actuator is for handling the one of medical treatment device
Individual structure and the second actuator are for handling another structure of medical treatment device.
Conduit 10 shown in Fig. 1 includes slender conduit main body 12, is positioned at the centre of the deflection of catheter main body 12 far-end
Sections 14 and be positioned at the end sections 15 of interstitial segment 14 far-end, described end sections includes having such as spiral form
Distal component 17.In the embodiment shown in Fig. 1 and Fig. 6, the joystick 16 being used in combination with conduit has the first actuating
Device, the most two-way flexure knob 50, described first actuator can start at least one drag wire (if not a pair drag wire
If), this drag wire extends across catheter main body 12 and middle node end 14 list for interstitial segment from joystick 16
To flexure or two-way flexure.According to inventive feature, joystick has second actuator relative with the first actuator 50,
Such as rotating disk 52, for starting another (or Article 3) drag wire, this drag wire is for handling independently or regulating therefrom
Between sections 14 extend distal component 17, such as to shrink the spiral form of distal component.Each actuator all can be by individually
Ground and be operating independently, without affecting other actuator or its drag wire.
In conjunction with Fig. 2 A and 2B, catheter main body 12 includes single central lumen or axial lumen 18.Catheter main body 12 is flexible
, the most flexible, but be virtually incompressible along its length.Catheter main body 12 can have any suitable structure, and can be by
Any suitable material is made.In one embodiment, catheter main body 12 includes the outer wall 22 being made up of polyurethane or PEBAX.
Outer wall 22 includes that the embedded mesh grid being made up of rustless steel etc., to increase the torsional rigidity of catheter main body 12, rotates so that working as
During joystick 16, the end sections of conduit 10 will rotate in a corresponding manner.
The external diameter of catheter main body 12 is the most non-key, but preferably more than about 8 French (French).Equally, outer wall 22
Thickness is also and non-key.The inner surface of outer wall 22 is lined with reinforced tube 20, and it can be by any preferred polyimides system of suitable material
Become.Reinforced tube 20 is fixed relative to outer wall 22 in the proximal end of catheter main body 12.By quick-drying gelatin such as Super Glue.RTM
The first gluded joint 23 is formed between the far-end and outer wall 22 of reinforced tube 20.Thereafter, by slower dry but relatively strength glue example
As polyurethane forms the second gluded joint 25 between the near-end and outer wall 22 of reinforced tube 20.
Reinforced tube 20 provides, together with braiding outer wall 22, the torsional stability improved, and minimizes the wall thickness of conduit simultaneously, thus
Maximize the diameter of single-lumen.The external diameter of reinforced tube 20 is about the same with the internal diameter of outer wall 22 or more smaller than it.Polyimide tube
Material is suitable, because its wall can be the thinnest to still provide the best rigidity.This makes the diameter of central lumen 18
Maximize without loss strength and stiffness.Polyimide material is generally not used for reinforced tube, because it tends to turning round when bending
Knot.However it has been found that for the application used by described conduit, and the outer wall 22 of polyurethane, PEBAX or other similar material,
Especially having the material of rustless steel mesh grid when combining, the trend of kink is substantially when bending for polyimides reinforced tube 20
It is eliminated.
In one embodiment, outer wall 22 has the external diameter of about 0.092 inch and the internal diameter of about 0.063 inch, and
Polyimides reinforced tube 20 has the external diameter of about 0.0615 inch and the internal diameter of about 0.052 inch.
As shown in Fig. 2 A, 2B and 3, interstitial segment 14 includes the relatively short segment of pipe 19, and this pipe has multiple tube chamber, such as
One tube chamber the 30, second tube chamber the 31, the 3rd tube chamber 32 and the 4th tube chamber 33.Pipe 19 is made up of suitable non-toxic material, described non-
Toxic materials is preferably more flexible than catheter main body 12.Suitable material for pipe 19 is woven polyurethane, i.e. has embedding
The polyurethane of the net of braiding rustless steel or similar material.Similar with the external diameter of catheter main body 12, the external diameter of interstitial segment 14 is preferred
No more than about 8 French.The size of tube chamber is the most non-key.In one embodiment, interstitial segment has about 7 French (0.092
Inch) external diameter, and tube chamber typically has about the same size, has the diameter of about 0.022 inch, or selected tube chamber
Can have the slightly larger diameter of about 0.036 inch.
Fig. 2 A and Fig. 2 B shows the device that catheter main body 12 is connected to interstitial segment 14.The near-end of interstitial segment 14
Including interior counterbore 24, the outer surface of this counterbore receivability polyimides reinforced tube 20.Interstitial segment 14 and catheter main body 12 pass through
Glue 29 grade connects.
As shown in Figure 2 A and 2B, various parts extend through the single-lumen 18 of catheter main body 12, such as lead-in wire and lead with a plurality of
Bracing wire and other wire rod any or cable.Drag wire enables a user to pass through relative to vertically moving of catheter main body 12
Joystick controls the various piece of conduit.As it has been described above, in one embodiment, have for making interstitial segment 14 bend
The first flexure drag wire and the second flexure drag wire 42, and for handling and regulate the distal component 17 of end sections 15
3rd drag wire 35.
Single lumen catheter main body 12 may be better than multitube cavity main body, because single-lumen 18 main body can make at rotary guide pipe 10
Time can better control over end.Single-lumen 18 makes the parts passed therethrough freely can wave in catheter main body.
If these parts are limited in multiple tube chamber, then they may gather strength when rotary handle 16, thus causes leading
Tube body 12 tends to when such as release lever back rotating, or tends to upset when around curved, and any trend is equal
It it is worthless performance characteristic.
The most as shown in Figure 3, a flexure drag wire 42 extends through the central lumen 18 of catheter main body 12 and enters
Second tube chamber 31 of interstitial segment 14.Another flexure drag wire 42 extends through central lumen 18 and enters interstitial segment 14
4th tube chamber 33.In this regard, tube chamber 31,33 should be off-axis and diametrically for relative to each other in plane
Two-way flexure.It will be understood by those skilled in the art that the far-end of flexure drag wire 42 is by T-shaped anchor (not shown)
Anchor to be positioned at the wall of the pipe 19 of interstitial segment 14 proximate distal ends.In interstitial segment 14, every flexure drag wire 42 all extends
Through plasticity sheath pipe 81 such as Teflon.RTM sheath pipe, described sheath pipe can prevent bending drag wire 42 and be bent at interstitial segment 14
Time incision interstitial segment 14 pipe 19 wall in.
As shown in Figure 2 B, around flexure drag wire 42 collapse coil 44 from the proximal extension of catheter main body 12 to centre
The near-end of sections 14.Collapse coil 44 is made up of any suitable metal such as rustless steel.Compression spiral winding 44 self is tight
Ground is wound around to provide pliability, i.e. bendability, but can be incompressible.The internal diameter of collapse coil 44 is preferable slightly larger than the straight of drag wire 42
Footpath.Such as, when drag wire 42 has the diameter of about 0.007 inch, collapse coil 44 preferably has about 0.008 inch interior
Footpath.Teflon.RTM. coating on drag wire 42 allow they in collapse coil 44 slidably.The appearance of collapse coil 44
Face is covered by pliable and tough non-conductive sheath pipe 27, contacts with prevent collapse coil 44 from such as going between with other parts and cable etc..?
In one embodiment, non-conductive sheath pipe is made up of polyimide tube.
By gluded joint 51(Fig. 2 B) reinforced tube 20 that the proximal anchor of collapse coil 44 is scheduled in catheter main body 12
Proximal end, and by gluded joint 49(Fig. 2 B) its distal anchor is scheduled on the middle node in the second tube chamber 31 and the 4th tube chamber 33
The near proximal ends of section 14.
In conjunction with Fig. 4, distal component 17 is positioned at the far-end of interstitial segment 14.Distal component 17 includes substantially straight proximal region
Territory 38 and substantially a ring-shaped main region 39.Proximal region 38 is installed on interstitial segment 14 and substantially a ring-shaped main region band
Have for mapping and/or multiple electrodes of melting.In the 5 embodiment of figure 5, distal component includes pipe 61.Shape memory member 54
Extend through the tube chamber of pipe 61 with the lead-in wire 40 of the electrode carried on distal component and enter interstitial segment 14 and lead
Tube body 12.
In disclosed embodiment of this invention, the 3rd drag wire or shrink drag wire 35 and be arranged to make substantially a ring-shaped
Main region 39 shrink, thus change in such as mapping or when melting the ring-type of heart or tubular area or reduce its diameter.Receive
Diminishing line 35 has the near-end being anchored in joystick 16, as further discussed below.Shrinkage front 35 extends through catheter main body
The central lumen 18 of 12, the 3rd tube chamber 32(Fig. 3 through interstitial segment 14) and enter distal component 17(Fig. 5).
3rd collapse coil 46 is positioned at catheter main body 12 and interstitial segment axle 14, around shrinkage front 35(Fig. 2 A).3rd
Collapse coil 46 is from the proximal extension of catheter main body 12 proximate distal ends of the 3rd tube chamber 32 extending to interstitial segment 14.3rd
Collapse coil 46 is made up of any suitable metal such as rustless steel, and himself is closely wound around to provide pliability, i.e.
Bendability, but can be incompressible.The internal diameter of the 3rd collapse coil 46 is preferable slightly larger than the diameter of shrinkage front 35.Outside collapse coil 46
Surface is coated with pliable and tough non-conductive sheath pipe 68, the sheath pipe being such as made up of polyimide tube.3rd collapse coil 46 preferably by
The wire rod with square or rectangular cross section is formed, and this makes its compressibility ratio be formed by the wire rod with circular cross section
The compressibility of collapse coil is poor.Therefore, the 3rd collapse coil 46 can prevent catheter main body 12 especially interstitial segment 14 from handling
Shrinkage front 35 is so that distal component 17 bends when shrinking, because its absorbable more compression.
3rd collapse coil 46 anchors to the reinforced tube of catheter main body 12 in its proximal end by nearside gluded joint 50
20, and anchor to interstitial segment 14 by far-end gluded joint.
Should be appreciated that the gluded joint throughout conduit 10 can comprise polyurethane adhesive etc..Can pass through by means of syringe etc.
The hole produced in tube wall applies this glue.This hole can such as be formed by the syringe needle of pierceable tube wall etc., wherein can fully heat
Syringe needle is to form permanent hole.Then by hole, this glue can be introduced the wick around pipe inner part, to be formed around parts
The gluded joint of whole periphery.
The lead-in wire 40 being connected to the ring electrode on distal component 17 extends through the first tube chamber 30(figure of interstitial segment 14
2A), through the central lumen 18 of guidewire body 12, through joystick 16 and terminate at adapter in its proximal end and (do not show
Go out) in, described adapter is connected to suitable monitor or other device, and described suitable monitor or other device are used for receiving
The information received from ring electrode with display.Lead-in wire 40 extends through the central lumen 18 of catheter main body 12, joystick 16 and
The part of the near-end of interstitial segment 14 is encapsulated in protectiveness sheath pipe 63, and this protectiveness sheath pipe can be excellent by any suitable material
Polyimides is selected to make.
Electromagnetic Position Sensor (not shown) is installed in distal component 17 or the vicinity of distal component 17, such as in
Between sections 14 far-end in.Sensor cable 36 extends to from sensor in the tube chamber 30 of interstitial segment (together with contact conductor
40), enter the central lumen 18 of catheter main body 12 and enter joystick, at joystick, terminating at suitable adapter
In (not shown).
In the embodiment shown in Fig. 6 and Fig. 7, joystick 16 includes turning to or bend the parts controlling assembly 13, should
Control assembly to include bending knob 50, make the two-way flexure of interstitial segment 14 for by drag wire 42.Every drag wire 42 is equal
It is made up of any suitable metal such as rustless steel or Nitinol.Preferably, every drag wire is respectively provided with the coating of low friction,
The coating of such as Teflon.RTM. etc..Every drag wire is respectively provided with preferably the scope of about 0.006 inch to about 0.012 inch
Interior diameter.Preferably, two drag wires have identical diameter.Available flat drag wire replaces circular drag wire.
Their cross sectional dimensions should be so that it can provide the hot strength identical with circular drag wire.
Alternatively, stretchable fiber can be completely or partially used to replace drag wire.Described fiber can
For high modulus fibrous material, preferably there is substantially ultimate elongation in the range of 412-463ksi (2480-3200Mpa) strong
Degree, such as high molecular density polyethylene (such as, SpectraTMOr DyneemaTM), the Para-aromatic Aramide Fibre that is spun into gathers
Compound (such as, KevlarTM) or liquid crystal polymer fibre rope (such as, the Vectran of melt-spunTM) or high-strength ceramic fiber
(such as, NextelTM).Term used herein " fiber " can exchange with term " plurality of fibers " and use, because described stretchable
Fiber can be weaving structure or knitting structure.In in either case, these materials tend to be flexibility, when becoming with pulley etc.
It is wound around to engage and can provide suitable durability when using, so that catheter tip bends by a relatively large margin.Additionally, they are the most non-
Extensibility, this can increase the response of the manipulation to joystick, and is nonmagnetic so that they generally for
MRI is shown as transparent.The low-density of this material make its to from the point of view of x-ray machine for substantially transparent.This material also may be used
For non-conductive to avoid short circuit.Such as, VectranTMThere is high intensity, high-wearing feature, for electrical insulator, nonmagnetic, be
Polymer, and under lasting loading condiction, there is low elongation.It will thus be appreciated that term as used herein " line "
Can be line, stretchable fiber or include line section and the stretchable component of stretchable fiber section.
The suitable flexure with flexure rotating disk and tension adjustment is described in United States Patent (USP) 7377906, should
The complete disclosure of patent is hereby incorporated herein by.For the present invention, Fig. 1, the enforcement shown in 6 and 7 are seen
Example.Joystick 16 includes generally elongated handle housing, and this handle housing can be made up of any suitable rigid material.Housing
Can be single structure or two half relative 16a, 16b, said two half portion by glueing joint, ultra-sonic welded or other is suitable
Method engages.Steering assembly 13 makes the two-way flexure of interstitial segment 14 in response to user to the manipulation of knob 50.Steering assembly phase
Substantial middle rotation axis 60 is limited for its parts.Axis 60 is approximately perpendicular to the longitudinal axis 64 of joystick.
In conjunction with Figure 10 and 11, steering assembly 13 includes the first control handle 50, the pulley arm 62 and first that can rotate causes
Dynamic device axle 66.This axle has less end 88, interstitial segment 89, bigger female end 86 and longitudinal hole 100, described longitudinal direction
Hole extends the length of described axle.The length of axle 66 is more than the thickness of arm 62, so that only interstitial segment 89 and bigger female end
86 medium pores 84 extending through arm 62, and less end 88 highlights from this arm.This arm has two apertures 68, said two
It is relative to each other that aperture crosses over axle 66.Each hole encapsulation pulley 70(Figure 16), this pulley engages with corresponding drag wire 42 and makees
For corresponding drag wire 42, described drag wire is wound around or is screwed on this pulley.Arm 62 and axle 66 are connected by pressure
Pin 92 connects rotatably, and this connecting pin extends laterally across the collimating aperture 94(Fig. 9 formed in arm 62) and in bigger female end
Hole 95(Figure 11 formed in 86).It should be noted that in the hole 100 that this pin does not charge into axle 66.
The smaller end 88 of axle 66 is inserted through the through hole 90 being formed in case half 16a and is received within knob 50
Medium pore 82 in.Knob 50 and end 88 are by the polygonal crosssection configuration of interlocking such as square, hexagon or eight limits
Shape shape and connect rotatably.Therefore, in order to make catheter deflection, knob 50 rotates in one direction, so that rotating shaft 66 He
Arm rotates in the same direction.As shown in Fig. 8 a to 8c, its drag wire 42 is pulled by the pulley 70 along the direction of rotation of knob 50
On this pulley, thus make interstitial segment 14 bend towards the direction, and relative pulley 70 discharges its drag wire 42.Drag wire pair
On the pull of this coordination and release movement achieve the flexure of interstitial segment 14.
With reference to Fig. 7 and Fig. 9, drag wire enters joystick to 42 by the port 74 being positioned in the far-end of joystick
16.Drag wire enters this arm (Fig. 9) and each all by slit opening 76 by the slit opening 76 being formed in arm 62
It is wound around or screws about 180 degree around corresponding pulley 70 before leaving arm.
Owing to can experience the repetitive cycling bending of every pulley line around its pulley, therefore in joystick especially about
The section of every drag wire of pulley can include the stretchable fiber section that can preferably stand stress and tension force, institute the most above
The stretchable fiber section stated.To this end, the adapter 80 of curling is configured to each first drag wire and the second drag wire district
The near-end of section 42a is connected to the far-end of corresponding stretchable fiber section 42b.
Most preferably seeing Figure 10, the first locking top cover screw 96 is inserted through opening 98 and is received within the vertical of the first axle 66
In hole 100, described opening leads to the through hole 82 of flexure knob 50.Knob 50 is fixed to axle by locking tack top cover screw 96
66.Arm 62 and case half 16a are fixed to one another by axle 66 then.Axle 66 interstitial segment 89 and bigger circumference female end 86 it
Between joint, shoulder 102 adjoins with the less internal diameter of the through hole 84 of arm 62.Therefore, when locking top cover screw 96 is relative to rotation
When button 50 screws, female end 86 against and arm 62 is pulled.So, the parts of flexure 13, including arm 62, axle 66, knob 50
With the inside that locking top cover screw 96 is substantially encapsulated in case half 16a.
Two-way steering assembly 13 also includes the element causing friction, including packing ring 104 such as saucer washer, so that flexure rotation
Button 50 self-retaining.In the embodiment shown in fig. 10, packing ring 104 is positioned on axle 66 between handle housing 16a and arm 62.
Packing ring compresses pretension below locking top cover screw 96 and provides friction by the contact surface with case half 16a and arm 62
Moment of torsion, so that knob 50 is fixed in the position of rotation set by user, thus the flexure of fixing interstitial segment 14.To this end,
Case half can be by having glass fibre such as, and the amount of glass fibre is of about the plastic material of 30% and constitutes, with at packing ring pressurized
Time permanent load under the conditions of minimize the risk of permanent deformation.In alternate embodiment shown in fig. 12, sintering metal
The through hole 90(of sleeve bearing 106 circumference lining housing handle 16a such as passes through insert moulding), to prevent from loading at long compressive
The permanent deformation of lower handle housing or " creep ".
Second independent drag wire actuating assembly 110 is substantially encapsulated in another case half 16b, this actuating assembly
Including the second axle 112, bearing 114 and actuating rotating disk 52.There is provided when starting three drag wires 52 friction regulation such as institute in Figure 13
The axle 112 shown includes elongated axle main body 116, and the Bobbin portion 118 at one end with edge 120 and cylinder 122 such as passes through
Knob grappling, the near-end of the 3rd drag wire or shrinkage front 35 is screwed around on cylinder, and described knob is by extending laterally across axle master
The through hole 124 of body hitches.The major part of cylinder is received within the through hole 100 of the first axle 66 at bigger female end 86 so that the
One axle 66 and the second axle 112 are axially aligned with.The desired depth of the neck formation 132 in the hole 100 of the first axle 66 provides arm
Gap 130 between 62 and edge 120, so that the arrowband of cylinder is exposed in gap 130 for the 3rd drag wire 35
Winding cylinder when two axles 112 rotate.3rd drag wire 35 be sandwiched between edge 120 and arm 62 with minimize with joystick inside
Other parts tangle risk.It should be noted that through hole 100 being sized to to the greatest extent at bigger female end 86
Common axis of rotation line is axially aligned and therefore had to pipe axle 66 and 112, but described axle 66 and 112 connects the most rotatably
To each other and the most independent of one another.They play the effect of radially sleeve bearing component.
During the axle main body 116 being positioned on the opposite side at edge 112 is inserted through in bearing 114 and the second actuating rotating disk 52
Centre partial bores.As shown in figure 14 a, bearing 114 has the less annular disc portion of diameter 141, and this dish portion is located at case half
In the through hole 141 formed in 16a.Bearing 114 also has the annular disc portion 142 that be relatively large in diameter adjacent with rotating disk 52.Should manage
Solving, bearing 114 can be overall shaped into a part for joystick case half.
Two relative radial direction cross through hole 150 connect with the central partial bores 136 of rotating disk 52.Location screw 152 is inserted
Enter in each hole 150 for when connecting rotating disk 52 rotatably with axle 112 with axle main body 116 CONTACT WITH FRICTION.
The eccentric through-hole 156 parallel with axle 112 is formed in activating rotating disk 52.This hole connects with C-shaped groove 160, and this is recessed
In the surface faced out of the part 142 being relatively large in diameter that groove is formed at bearing 114 (Figure 14 b).Pressure adjustable pin 162 inserts hole
In 156, the end of this hole pin is received within groove and rides pressure in a groove.Setting the minimum and maximum of the 3rd drag wire 35
When advancing for regulation distal component 17, the stop of the pin 162 of the degree of rotation being restricted rotating disk 52 of the end 164 of groove
Part.Should be appreciated that groove and end can be overall shaped into a part for joystick case half.
Second locking top cover screw 168 is received within longitudinal partial bores 136 of rotating disk 52 and by through the second axle
Through hole 113 in 112 engages with the second axle.Rotating disk 52 is fixed to the second axle 112 by locking top cover screw 168.Axle 112 then will
Bearing 114 and case half 16b are fixed to one another.Therefore, axle 112, bearing 114 are generally maintained at the inside of case half 16b.
When screwing the second lock screw 168, screwdriver or die nut can be inserted deeply in the longitudinal hole 100 of rotating shaft and (not install
First locking top cover screw 96) and arrive the hole 113 of the second axle 112 and fix with holding shaft 112.Screwdriver or die nut with
The screwdriver of the cooperation formed in the through hole 100 being positioned at cylinder 122 receives slit or hexagonal cross-section to engage.Can install
With screw the first locking top cover screw 96, simultaneously will flexure knob 50(and axle 66 by user) keep fixing.
3rd drag wire actuating assembly 110 includes the second element causing friction, including packing ring 170 such as saucer washer,
So that activating rotating disk 52 self-retaining.In the illustrated embodiment, packing ring is positioned in second between edge 120 and bearing 114
On axle 112.The big contact surface area provided by edge provides friction torque for making rotating disk 52 self-retaining.This packing ring also exists
Pretension is compressed and by providing friction to turn round with the contact surface of edge 120 and bearing 114 below second locking top cover screw 168
Square, so that rotating disk 52 is fixed in the position of rotation set by user, thus the regulation of stationary remote assembly 17.
Owing to can experience the repetitive cycling bending of shrinkage front 35 around cylinder 122, therefore the shrinkage front 35 in joystick can
Including the stretchable fiber section that can preferably stand stress and tension force.To this end, adapter 180(Fig. 9) be configured to the 3rd
The near-end of drag wire 35a is connected to the far-end of stretchable fiber section 35b.As shown in figs. 15 a and 15b, adapter 180 is accepted
In carrier 18 2, central partition wall rib 184(Fig. 7 that this carrier edge is formed in housing handle 16a) translation, this dividing wall rib
The effect of formation is strengthened in the structuring also functioning to joystick.This carrier has rectangular body 186, and this main body is formed tool
Fluted 188, adapter is nested in this groove.Two entrances 190 are formed in main body 186 and are positioned at adapter to accommodate
3rd drag wire section 35a of 180 end and be positioned at the stretchable fiber 35b at the other end.The downside of carrier element has
Elongated slit 192, this slit engagement ribs 184.This rib is along leading between the first drag wire and the second drag wire 42 and with first
Bracing wire and the almost parallel longitudinal direction of the second drag wire 42 extend.
In use, by inserted into the patient for suitable guide sheath pipe, its far-end is positioned in desired position.Can be with this
The example of suitable guide sheath pipe that invention is used together is Preface.TMBraiding Guiding Sheath, and it can be from
Biosense Webster, Inc. (Diamond Bar, Calif.) are commercially available.The far-end of this sheath pipe is led into wherein
In one chamber, such as in atrium.To send into, until its far-end is from drawing by conduit channeled sheath pipe according to an embodiment of the invention
The remote extension of lead sheath pipe is out.When conduit channeled sheath pipe is sent into, distal component 17 is stretched to be suitable for through this sheath pipe.
Remotely located in desired location, by guide sheath pipe proximally tractive once conduit so that interstitial segment 14 He of deflection
Distal component 17 extends the outside of this sheath pipe, and distal component 17 returns to its original shape due to its shape memory.
Making interstitial segment 14 bend by handling and rotating flexure knob 50, then distal component 17 is inserted into pulmonary vein
Or other tubular area (such as superior vena cava or postcava), thus the outside of the substantially a ring-shaped main region 39 of assembly 17
Contact with the surrounding in tubular area.Rotating flexible arm 50 in one direction can make interstitial segment 14 bend towards the direction.Towards phase
To direction rotate flexure rotating disk 50 interstitial segment 14 can be made to bend towards this relative direction.The periphery of the main region of general toroidal
With the peripheral contact within tubular area, contact range is preferably at least about the 50% of main area peripheral edge, the most extremely
Few about 70%, it is still more preferably at least 80%.
The annular configuration mode of the electrode in substantially a ring-shaped part 39 makes it possible to measure the electricity of the surrounding of tubular structure and lives
Dynamic, so that the ectopic beat that can determine that between electrode.Because it is quiet that the diameter of substantially a ring-shaped main region 39 corresponds roughly to lung
Arteries and veins or the diameter of other tubular structure, thus this ring-type main region be sized to measure along pulmonary vein or heart or the heart
The electrical activity of the diameter of other tubular structure near dirty.By maneuvering dial 52, regulate substantially a ring-shaped main region 39 with suitable
Close pulmonary vein or other tubular structure.In disclosed embodiment of this invention, by rotary turnplate in one direction, will shrink
Line 35 proximally pulls to tighten and reduce the diameter in substantially a ring-shaped region 39.By rotary turnplate to another way, receive
Diminishing line 35 loosens substantially a ring-shaped region 39 is discharged into its initial diameter.
Combine currently preferred embodiment of the invention and carry out above description.Technology in the technical field of the invention
Personnel are it will be appreciated that on the premise of not having a mind to deviate from the principle of the present invention, spirit and scope, can modify described structure
And change.Such as, can improve this conduit makes the 3rd drag wire advance and bounce back another parts such as leading line or syringe needle.Ability
The those of ordinary skill in territory is it will be appreciated that accompanying drawing is not necessarily drawn to scale.Therefore, above description be understood not to only with in accompanying drawing
Described and diagram precision architecture is relevant, and should be understood to meet and following have the most comprehensive and claim of zone of reasonableness
Book also supports claims.
Claims (13)
1. for the joystick of medical treatment device, described medical treatment device have at least the first structure handled by user and
Second structure, described medical treatment device also has and at least the first leads for handle described first structure and described second structure respectively
Bracing wire and the second drag wire, described joystick includes:
Housing, described housing has the first housing parts and the second housing parts;
First actuating assembly and the second actuating assembly, described first actuating assembly and described second actuating assembly can be around jointly
Axis rotate,
Described first actuating assembly includes the first actuator, the arm that can rotate and the first axle around described axis, described first
Actuator and described arm are connected rotatably by described first axle;Described arm has at least one pulley, described first drag wire
Engage with at least one pulley described;
Described second actuating assembly includes that the second actuator and the second axle, described second axle have Bobbin portion,
The described arm that makes when being rotated in mobile described pulley of wherein said first actuator rotates to pull described first drag wire,
Thus handle the first structure of described medical treatment device, and described second drag wire is twined by the rotation of wherein said second actuator
On described Bobbin portion, thus handle the second structure of described medical treatment device.
Joystick the most according to claim 1, wherein said first axle has female end and described second axle has male end,
And described male end is received within described female end so that described first axle and described second axle are axially aligned with.
Joystick the most according to claim 2, wherein said first axle and described second axle are the most independent.
Joystick the most according to claim 1, wherein said first actuating assembly includes the first compression causing friction
Device is to keep the position of rotation of described first actuator.
Joystick the most according to claim 1, wherein said second actuating assembly includes the second compression causing friction
Device is to keep the position of rotation of described second actuator.
Joystick the most according to claim 4, wherein said first actuating assembly includes that the first screw is described with regulation
The compression stress of the first compressor causing friction.
Joystick the most according to claim 5, wherein said second actuating assembly includes that the second screw is described with regulation
The compression stress of the second compressor causing friction.
Joystick the most according to claim 1, wherein said second actuating assembly also includes that block piece is described to limit
The rotating range of the second actuator.
Joystick the most according to claim 8, wherein said second actuating assembly includes bearing, described bearing substantially position
Between described Bobbin portion and described second actuator.
Joystick the most according to claim 9, wherein said bearing is constructed having groove, and from described
The pin that two actuators highlight is ridden and is pressed in described groove.
11. joysticks according to claim 1, wherein said joystick has longitudinal axis and is approximately perpendicular to institute
State rotation axis.
12. joysticks according to claim 1, wherein said medical treatment device includes another drag wire, and described
First actuating assembly includes at least two pulley, and each pulley all engages for described medical treatment device with corresponding drag wire
Two-way flexure.
13. 1 kinds of conduits, including:
Elongate body;
Distal component, described distal component has adjustable configuration;
First drag wire and the second drag wire, described first drag wire and described second drag wire extend through described elongated master
Body;
3rd drag wire, described 3rd drag wire extends through described elongate body and described distal component;
According to the joystick according to any one of claim 1-12.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/299807 | 2011-11-18 | ||
US13/299,807 US8523808B2 (en) | 2011-11-18 | 2011-11-18 | Medical device control handle with independent self holding puller wire actuators |
US13/299,807 | 2011-11-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103120601A CN103120601A (en) | 2013-05-29 |
CN103120601B true CN103120601B (en) | 2016-09-14 |
Family
ID=47290659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201210465475.9A Active CN103120601B (en) | 2011-11-18 | 2012-11-16 | There is the medical device control handle independent from fixing drag wire actuator |
Country Status (10)
Country | Link |
---|---|
US (1) | US8523808B2 (en) |
EP (1) | EP2594308B1 (en) |
JP (1) | JP6173679B2 (en) |
CN (1) | CN103120601B (en) |
AU (1) | AU2012250289B2 (en) |
CA (1) | CA2795790C (en) |
DK (1) | DK2594308T3 (en) |
ES (1) | ES2710304T3 (en) |
IL (1) | IL223020A (en) |
RU (1) | RU2623131C2 (en) |
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AU2019257430B1 (en) * | 2019-10-30 | 2020-02-27 | Cook Medical Technologies Llc | A line puller assembly for an endo-luminal delivery device |
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CN114711953B (en) * | 2022-04-29 | 2023-03-10 | 江苏唯德康医疗科技有限公司 | Endoscopic surgical instrument |
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- 2012-11-13 IL IL223020A patent/IL223020A/en active IP Right Grant
- 2012-11-15 CA CA2795790A patent/CA2795790C/en not_active Expired - Fee Related
- 2012-11-16 RU RU2012148891A patent/RU2623131C2/en active
- 2012-11-16 CN CN201210465475.9A patent/CN103120601B/en active Active
- 2012-11-16 EP EP12193056.4A patent/EP2594308B1/en active Active
- 2012-11-16 JP JP2012251998A patent/JP6173679B2/en active Active
- 2012-11-16 ES ES12193056T patent/ES2710304T3/en active Active
- 2012-11-16 DK DK12193056.4T patent/DK2594308T3/en active
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EP2289592A2 (en) * | 2009-08-28 | 2011-03-02 | Biosense Webster, Inc. | Catheter with multi-functional control handle having linear mechanism |
Also Published As
Publication number | Publication date |
---|---|
RU2012148891A (en) | 2014-05-27 |
EP2594308A1 (en) | 2013-05-22 |
CA2795790A1 (en) | 2013-05-18 |
RU2623131C2 (en) | 2017-06-22 |
JP2013106955A (en) | 2013-06-06 |
AU2012250289A1 (en) | 2013-06-06 |
EP2594308B1 (en) | 2018-12-26 |
ES2710304T3 (en) | 2019-04-24 |
US8523808B2 (en) | 2013-09-03 |
CN103120601A (en) | 2013-05-29 |
US20130131592A1 (en) | 2013-05-23 |
DK2594308T3 (en) | 2019-03-11 |
IL223020A (en) | 2016-02-29 |
CA2795790C (en) | 2020-01-07 |
AU2012250289B2 (en) | 2015-08-06 |
JP6173679B2 (en) | 2017-08-02 |
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